tests: qemublock: Add basic 'raw' file test

Test the JSON props generator with a very simple 'raw' image with no
other options. The node-names for the image are 31 bytes long so that we
validate our node name detector.

The top level disk image would generate the following '-drive' cmdline:

-drive file=/var/lib/libvirt/images/i.img,format=raw,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

tests/qemublocktest.c

@@ -405,6 +405,8 @@ mymain(void)
     TEST_DISK_TO_JSON_FULL("nodename-long-format", true);
     TEST_DISK_TO_JSON_FULL("nodename-long-protocol", true);
 
+    TEST_DISK_TO_JSON("file-raw-noopts");
+
  cleanup:
     virHashFree(diskxmljsondata.schema);
     qemuTestDriverFree(&driver);

tests/qemublocktestdata/xml2json/file-raw-noopts.json

+{
+  "node-name": "0123456789ABCDEF0123456789ABCDE",
+  "read-only": false,
+  "driver": "raw",
+  "file": {
+    "driver": "file",
+    "filename": "/var/lib/libvirt/images/i.img",
+    "node-name": "0123456789ABCDEF0123456789ABCDE",
+    "read-only": false,
+    "discard": "unmap"
+  }
+}

tests/qemublocktestdata/xml2json/file-raw-noopts.xml

+<disk device='disk'>
+  <driver name='qemu' type='raw'/>
+  <source file='/var/lib/libvirt/images/i.img'>
+    <privateData>
+      <nodenames>
+        <nodename type='storage' name='0123456789ABCDEF0123456789ABCDE'/>
+        <nodename type='format' name='0123456789ABCDEF0123456789ABCDE'/>
+      </nodenames>
+    </privateData>
+  </source>
+  <target dev='vda'/>
+</disk>